I second chhappy7. This is good stuff: https://www.amazon.com/gp/product/B011F7W3LU

Thermal Grizzly Kryonaut.

While you're in there, you can replace the battery. I think this one fits, but make sure your exact laptop model's listed: https://www.amazon.com/33YDH-Inspiron-Latitude-081PF3-12-Warranty/dp/B07X5H9NMN